[1] Catholic University of Rome and IRCCS Fondazione Policlinico “A. Gemelli”,Department of Geriatrics
[2] University of Brescia,Department of Clinical and Experimental Sciences
[3] Health Search,Italian College of General Practitioners and Primary Care
[4] University of Florence,Department of Health Sciences
[5] IMS Health Information Solutions Medical Research srl,undefined
[6] Italian College of General Practitioners and Primary Care,undefined